Optimal foot-position of caregiver based on muscle activity of lower back and lower limb while providing sit-to-stand support
| Autor: | Shogo Okamatsu, Sota Nakano, Chikamune Wada, Kodai Kitagawa, Mitsumasa Hida, Takayuki Nagasaki |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
030506 rehabilitation
medicine.medical_specialty Sit to stand business.industry Physical Therapy Sports Therapy and Rehabilitation 030229 sport sciences Lumbar vertebrae Lower limb 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure Physical medicine and rehabilitation Patient handling Lumbar load Back pain medicine Erector spinae muscles Low load Original Article medicine.symptom Muscle activity 0305 other medical science business Foot-position Foot (unit) |
| Zdroj: | Journal of Physical Therapy Science |
| ISSN: | 2187-5626 0915-5287 |
| Popis: | [Purpose] In caregivers, low load posture is necessary to prevent lower back pain during patient handling activities such as sit-to-stand support. This study focused on the foot-position of caregivers as an adjustable and useful parameter. A wide stance decreases the stress on the lumbar vertebra. However, this foot-position increases loading of the spinae erector muscles. The aim of this study was to investigate the relationship of anterior-posterior and lateral-medial distances between feet and activity of the spinae erector muscles to determine the optimal foot-position for reducing stress on the lumbar vertebra without increasing spinae erector muscle load. [Participants and Methods] Five young male participants were asked to provide sit-to-stand support 10 times using nine normalized foot-positions with different anterior-posterior and lateral-medial distances. Surface electromyograms of the erector spinae and lower limb muscles were measured during sit-to-stand support. [Results] The results showed that the optimal foot-position (anterior-posterior 55%, lateral-medial 20% of body height) increased muscle activity within the lower limb muscles compared with the lower back muscles and did not increase loads on the erector spinae muscle. [Conclusion] Optimizing foot-position can reduce stress on the lumbar vertebra without increasing load on the spinae erector muscles. |
| Databáze: | OpenAIRE |
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